What absorbs at 460 cm⁻¹ in an FTIR spectrum?
A band near 460 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Siloxane (Si-O-Si) | 6 | 6 | 0.9 |
| Metal oxygen | 5 | 5 | 0.9 |
| Silicon-oxygen (Si-O) | 3 | 3 | 0.95 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
confidence 1.0
“Peak due to external tetrahedral.”
Naseem 等 - 2020 - Mesoporous ZnAl2Si10O24 nanofertilizers enable hig DOI: 10.1038/s41598-020-67611-4 -
Silicon-oxygen (Si-O) confidence 0.95
“Explicit assignment: 'peaks at 460 becoming stronger' referring to Si-O.”
Qin 等 - 2022 - Application of SiON Coatings in Sandstone Artifact DOI: 10.3390/coatings12060748 -
Metal oxygen confidence 0.9
“Text states 'stretching and bending vibrations of Cd-O at 720, 625 and 460 cm-1'”
Bhukkal 和 Ahlawat - 2020 - Cu2+-Mn2+-Co-doped CdO nanocrystallites comprehen DOI: 10.1007/s11164-020-04202-y -
Metal oxygen confidence 0.9
“Explicit assignment: bending vibrations of Ti-O.”
Raguram 和 Rajni - 2020 - Effects of varying the soaking duration of Eosin B DOI: 10.1016/j.ijleo.2020.164169 -
Metal oxygen confidence 0.9
“symmetric bending vibration of Zn-O in ZnO-R NPs”
Saleemi 等 - 2022 - Synthesis of Zinc Oxide Nanoparticles with Bioflav DOI: 10.3390/antiox11101853 -
Siloxane (Si-O-Si) confidence 0.9
“explicit assignment”
Yue 等 - 2014 - Preparation of Silica Microspheres Coated by Nano- DOI: 10.4028/www.scientific.net/AMR.924.36 -
Siloxane (Si-O-Si) confidence 0.9
“Text: '460cm-1 ... silicon atoms in siloxane bonds (Si-O-Si)'”
Al-Harbi 等 - 2016 - Adsorption of Polyvinylpyrrolidone over the Silica DOI: 10.1155/2016/2417292 -
Metal oxygen confidence 0.9
“Explicit assignment: confirms formation of Cu-O.”
Andal 等 - 2021 - Synthesis of CuAl2O4 Nanoparticle and Its Conversi DOI: 10.1155/2021/8082522
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